Voltage Monitoring Relays and Electrical Equipment Protection
Three-phase voltage relay Zubr 3F
Price includes 24% VAT · excl. VAT 40.22 €
The load shutdown delay time can be set as needed.
Product code: 50936415
The three-phase voltage relay Zubr 3F displays the voltage of three phases on the screen.
If the voltage is within the normal range, the load is powered up after a preset delay time and the red indicator lights up.
To navigate between menus, use the middle button on the housing (see table).
Use the ↑ and ↓ buttons to change the parameters.
The parameter starts flashing when the button is pressed for the first time.
With a second press, you can change the parameter value.
If the button is not pressed within 5 seconds, the screen will automatically return to displaying the system voltage.
For normal operation of the voltage relay, one phase and zero are sufficient, thanks to which the voltage relay can also be used as a full-fledged single-phase protection device.
The voltage relay will not work without a neutral wire.
A contactor must be used to control a three-phase voltage relay.
Technical data (ZUBR 3F):
Contacts: 5 A
Mounting method: DIN rail
Number of phases: 3 phases (230/380 V)
Thermal protection: none
TrueRMS measurement: yes
Professional power-off delay: yes
Undervoltage limit: 120–210 V
Overvoltage limit: 220-280 V
Rated load: 1000 VA
Load disconnection time in case of voltage drop: not more than 1 s (>120 V), not more than 0.04 s (<120 V)
Load disconnection time in case of overvoltage: not more than 0.04 s
Load switch-on delay: 3–600 s
Voltage asymmetry sensitivity: 10-80 V
Trip delay in case of phase asymmetry: 0–30 s
Voltage relay supply voltage: 100–420 V